<!DOCTYPE html>
<html lang="en">
    <head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="style.css">
<title>Vue Template</title>
</head>
<body>
    <div id="app">
        <div v-if="books.length">
            <table>
                <thead>
                    <th>序号</th>
                    <th>书籍名称</th>
                    <th>出版日期</th>
                    <th>价格</th>
                    <th>购买数量</th>
                    <th>操作</th>
                </thead>
                <tbody>
                    <tr v-for="(book, index) in books">
                        <td>{{ book.id }}</td>
                        <td>{{ book.name }}</td>
                        <td>{{ book.date }}</td>
                        <td>{{ book.price | showPrice }}</td>
                        <td>
                            <button @click='sub(index)' v-bind:disabled='book.num <= 1'>-</button>
                            {{ book.num }}
                            <button @click='add(index)'>+</button>
                        </td>
                        <td><button @click='remove(index)'>移除</button></td>
                    </tr>
                </tbody>
            </table>
            <h2>总价格：{{ totalPrice | showPrice }}</h2>
        </div>
        <h2 v-else>购物车为空</h2>
    </div>
<script src="../js/vue.js"></script>
<script src="main.js"></script>
</body>
</html>